Support , maybe these light and darkness could give plunder bonus, but i doubt devs will do that if they like your Light or Darkness idea. It'll prob be something stupid for devs twist/bonus idea that they'd put into it, but oh well, i still support.
So, your saying that each player could have a particular affinity and this element could grant us particular benefits to certain areas and aspects of kaw? Sounds fascinating - wouldn't hurt to expand this idea. Support
Chaos - you bet! We can be a specialized player other than spy, troop, and/or war build which all builds are BORING!